Sterilizer



July 4, 1933. Q CNAB X 1,916,804

STERILIZER Filed 061.8. 1951 nvenlor @M2022 MQW-2&4

"7 flllomcy Patented July 4, 1933 GORDON ,MCNAR OF IBRITTOLLVSOUTI-I DAKOTA STERILIZER Application October 8, 19.31. Serial No. 567,708.V

This invention relates to a steriliZer, the

' general object of the invention being to provide a portable sterilizer, preferably formed of a glass bowl and having electric heating means therein, of such a character that the liquid in the bowl will be almost instantaneously heated when the current is turned on, with the shape of the heating unit being suoli that danger of dulling the edges ofcuttlng tools or the like orinjuring other tools is eliminated, with means whereby the heating unit can be easily removed for cleaning or repair purposes when necessary.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts to be hereinafter fully described, illustrated in the accompanying drawing and specifically pointed out'in the appended claims.

In describing the invention in detail, reference will be had to the accompanying drawing wherein like characters denote like or corresponding parts throughout the several views, and in which Figure 1 is a sectional view through the invention.

Fig. 2 is a top plan view of the heating unit. 2,@ F ig. 3 is a View showing a connector for connecting the conductors of the unit with a source of supply.

Fig. 4 is a view of a further modication.

In the drawing, the numeral 1 indicates a bowl which is preferably formed of glass and of heat resisting qualities, andwhich is formed with a subtantially straight enlarged part 2 at its lower part, through which an opening 3 passes, which is formed with a countersink at its inner end. The heating unit consists of a substantially circular part 4, having a stem 5 extending from one part thereof, which is formed with a hollow enlargement 6 from which a stem 7 extends, the stem being connected with the flat outer face of the enlargement by a beveled part 8 which conforms to the countersunk part of the hole 2, it being of course understood that the stem is adapted to pass through the hole 3. Y

A washer 9 of fiber, rubber or the like, is

placedbetween the inner wall `of the enlargement 2 of the bowl and the iat face of theenv outer part of the stem and presses the washer against the exterior wall 'of the enlargement 2 `for holding the parts in place. The coil 12 passes yaround the body 13, of non-conducting material which is located in the casing'4 and has the bottom projections 14 resting on the bottom of the casing,'so that the part 'of the body around which the` coil passes, is I spaced from the bottomof thecasing.

The ends 15 of the coil pass through a plug 16 of non-conducting material which isinserted in the stem 7 and partlyprojectsc-th'erefrom, and the outer' ends of the wires 15 are connected lto the contacts 17 carried by the plug adjacent its outer end. A substantially cup-shaped member 18l is threaded on the outer end of the stem 7 and encloses the plug so that a connector such as shown at 19 in Fig. 4 can be partly placed' in the cup 18 over the plug 16 to engage the contacts 17 to supply current to the coil.

p lAs shown in Fig. 2, the casing 4 is substantially of circular shape, so as to form a flat surface in the bowl upon which articles placed in the bowl may rest without danger of theV heatingv unit dulling the cutting edges of cutting instruments or damaging other instruments.

The heating unit can readily be removed from the bowl by removing the cup 18, the nut l1 and the washer 10 and instead of having the stem 7 passed through a hole in the side of the bowl, said stem may pass through a hole in the bottom of the bowl, as shown at 7" in Fig. 3. Of course, in this case, the stem is connected' to the bottom of the casing 4 as is the enlargement 6 of the casing.

This device is particularly suitable for the use of barbers, beauty parlors, doctors, dentists, and the like, and can be used in hospitals and nurseries, asy the device can be readily moved from place to place and it provides simple means vfor almost instantly heating the liquid plaoed therein.

By making the bowl of glass, the contents are visible and the parts can be easily taken apart and cleaned. f It may be constructed for use on either alternating or direct current.

It is thought from Vthe foregoing description that the ladvantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be made in the construction Vand' in theeombinal tion and arrangement of the several parts, provided that such Changes fall within the scope of the appended claims.

Having thus described my invention, what l claim as new is l A l. vAv sterilizer for instruments and the like rComprising a receptacle having an open top anopening in,v anlower wall ltliereofa casing located m the lower part of the receptacle and Ahaving itsubottom spaced from the bottom ofthe receptacle and its Vsides slightly spaced from the sides of the Yreceptacle the lupper face of the casing being fiat to'support artic'leswithout, injuring the artiole, the vstem connected with thecasing and passing through .tliev hole in the receptacle,

lsaid stem having .an enlargement adjacent its inner end having a flattened outer face7V a gasket located betweensaid face and part of the internal'wall ofthe receptacle, a nut onthebuterend of the stem for removably holding the stem the hole, a coil inthe casing, a supporting In'einber for the coil located in the casing, the `ends of the'coil passvso ing through the stem and a plug extending into the stemY and having contacts thereon with which the ends of the coil are connected.

2. A sterilizerof theclass described comprising a glass bowl havingl its top open and a hole in its lower wall thereof, the inner end of the hole being countersunk,a casing. located in the lower part lof the bowl and having its bottom slightly spaced from thev bottom of the bowl and the sides slightly spaced from the sides of the bowl, the top of the casing being Hat, a stem connected with the eas-k Y ing and passing through the hole in the bowl, said stem being of hollow construction and having an enlargement adjacent its inner endY formed with a flattened outer face and a centrally arranged vcone partforiitting in the countersunk, a gasket placed between the enlargement and a part of the internal wall of the bowl, ra washer encircling the stem and engaging a part of an external wall ofi the bowl, a nut on the stem contactingthe.washer, 

